1320353985

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{2837}}^1$

素因数の和:2958

約数の個数: 64

約数和(自身を含む): 2353950720

約数和(自身を除く): 1033596735

約数列:

[1, 3, 5, 15, 19, 23, 57, 69, 71, 95, 115, 213, 285, 345, 355, 437, 1065, 1311, 1349, 1633, 2185, 2837, 4047, 4899, 6555, 6745, 8165, 8511, 14185, 20235, 24495, 31027, 42555, 53903, 65251, 93081, 155135, 161709, 195753, 201427, 269515, 326255, 465405, 604281, 808545, 978765, 1007135, 1239769, 3021405, 3719307, 3827113, 4632821, 6198845, 11481339, 13898463, 18596535, 19135565, 23164105, 57406695, 69492315, 88023599, 264070797, 440117995, 1320353985]

約数ペア:

[(1, 1320353985), (3, 440117995), (5, 264070797), (15, 88023599), (19, 69492315), (23, 57406695), (57, 23164105), (69, 19135565), (71, 18596535), (95, 13898463), (115, 11481339), (213, 6198845), (285, 4632821), (345, 3827113), (355, 3719307), (437, 3021405), (1065, 1239769), (1311, 1007135), (1349, 978765), (1633, 808545), (2185, 604281), (2837, 465405), (4047, 326255), (4899, 269515), (6555, 201427), (6745, 195753), (8165, 161709), (8511, 155135), (14185, 93081), (20235, 65251), (24495, 53903), (31027, 42555)]